Weft Passport — Textile Provenance & Compliance Platform

The Problem

Machine-made cloth is routinely sold as "handwoven," and the people who actually weave it are invisible in the supply chain. At the same time, regulation is closing in: the EU's Empowering Consumers for the Green Transition directive, the textile Digital Product Passport, and the UK's Green Claims Code all mean that brands making "handwoven" or "ethical-origin" claims will soon have to prove them — or face penalties for greenwashing.

Our client needed a way to record provenance at the source — down to the individual artisan and loom — and turn it into proof a brand and a regulator could trust.

Our Solution

Provenance captured at source

A field verification flow records the artisan, household, loom, location and photos behind a batch of cloth, built around a multi-tenant data model that links artisan → loom → batch → SKU.

A certification lifecycle, not just a database

Batches move through a clear lifecycle — captured in the field, submitted for review, then certified by an admin — so every claim is backed by a deliberate verification step rather than self-declaration.

Proof for two different audiences

A certified batch produces two things: a public consumer provenance page, reached by a QR code, that tells a shopper who made the item; and a brand-facing compliance record aligned to the incoming regulatory frameworks.

Built on least-privilege security

Role-based access separates admins, brands and field coordinators, and the public provenance page is made safely readable by anonymous visitors through dedicated Postgres Row-Level Security policies — public where it should be, locked down everywhere else.

Built thin by design

The hard-won asset here is the client's field methodology, dataset and regulatory mapping — so the software was built standard and fast on a modern, proven stack rather than over-engineered.

Tech Stack

• Frontend: Next.js 14 (App Router), React, TypeScript, Tailwind CSS
• Backend & data: Supabase — PostgreSQL, Auth, Row-Level Security
• Deployment: Vercel

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Need to prove your supply-chain claims before the regulation does? Talk to us.